Today, if one wants to make some drastic changes in life — learn to meditate, build muscle mass, or eat healthier — they don’t necessarily need to go to the gym or see a nutritionist. Now, people can just download an app and stick to the instructions. And that's why health & fitness apps are flourishing like never before. According to Straits Research, global fitness app market is expected to reach USD 30.63 Billion by 2030, meaning it will be growing at a compound annual growth rate of 21.5%.